Loose-leaf binder



Dec. 10, 1929. J. KAHN 1,738,585

LOOSE LEAF BINDER Filed Jan. 14, 1929 2 Sheets-Sheet 1 1o 21 v v [720672707 waiiz sea; 2 Jiafi Z-v .WM .4? I v z j Dec. 10, 1929. J. KAHN LOOSE LEAF BINDER Filed Jan. 14, 1929 2 Shasta-Sheet 2 Patented Dec. 10, 1929 masts Loose-LEAF BINDER Application filed January 14, 1929. Serial-No. 332428.

This invention is an improvement in loose leaf binders of the class to which my Pat'- ent No. 1,647,635 relates. The main objects of this invention are to provide an improved lock for securing loose leaves in bound condition, and which conveniently may be ma nipulated by a single hand; to provide means for moving a locking member of the loose leaf binder intoand out of locking position by a camming action; to provide a pivotal connection between the binder coverand leaf holding. elements for facilitating convenient removaland replacement of loose leaves wvithout straining the materials comprising the cover; to provide an improved attachment for securing a le'afholdii'ig' devic'ein a binder cover without requiring a rigid reinforcing rib, rivets or other similar rigid means extending through the cover; to" provide a de' vice of the class described in which the leaf holding mechanism is completely concealedfrom sight and entirely covered by softma terial to avoid injuring polished surfaces; to provide an improved construction whereby all-operating parts are reta ned out of forced engagement with the binder cover; agnd 'to provide adevice of the class described in} which parts of inexpensive construction may be employed without cheapeni'ng its appear- 39 mice or impairing its-strength and durabilit In the accompanying drawings, I have shown" embodiments of my invention in which: y Y

Figurel is'a fragmentary-plan of an open binder showing a locking bar in locked pesttion. V

Fig. 2 is a;- vi'ew similar to tl iatshown in Fig. 7 is a fragmentary perspective of a modified form of myinvention.

' In general my invention comprises an: in

tegral' binder cover having'spaeed bearing members or rods attached" thereto. A substanti'ally rigid strip is'piv'ot'ally mounted-on each rod: One strip is provided with eX- tensible posts for insertion t'hrou'ghap'ertures in loose leaves and the other strip is provided with apertures for receiving the endsof the posts. A lo'ck'ing'bar is slidablymounted on the apertured strip and im rovedmean is provided for camming the locking bar laterally into and out of locked engagement with the top of the posts; In the form shown in' Figs. 1 to 5zinclusifve'g the binder cover 1 comprising flexible"ma terial such as leather or rubberized fabric is 5 provided at its middle portion omits inner side with a flexible. liner-2:. Any suitable" flexible material such' as rubberized fabric" may be used and its longitudinal, edge portions may be looped or beaded as sl i-owrrat 8 4a in the drawings. The edges are tucked underneath and secured by stitches 5,"between'- the liner andthe cover, and the liner is also secured at its ends by stitches 6 which extend through thecover 1-. GyIinWe.

"d'rical' bearing memfbers comprising rods; 7 p

and 8 are-inserted in theubeads 3 and 4 respectivelyl and, terminate intermediate; the ends of the be'ads. The beads are slit adja'cent the ends of the bearing members-as 9 showirat 9 in F igi 5. Rigidstr-i-ps 'ld 11 comprising hinged el'ements- 12 are piv otally mounted on the bearingmembers -7 and; 8 respectivelyby pintles 18 which extend through t'he tubular portionsl ofthe hinge el ement's3and into the end portionsof the members 7 and 8.

Tl'ie tubular portions 14 of the hinged elements are smaller-in diameter than: the rods? and 8; and thus they are held-away from the go flattened portions l5"'of"th'e' beads 3' antle -and from the cover-l I I Extensible binder posts-"16 areprovided'. comprising sockets I5 I secured to' the strip 10; the posts 16" being-threaded in the: sockets 15, as shown in Fig. 3. 1 p 1 A.- cyl'ind rical' projection 17 is provided on the upperend ofe'ach post fiif and terminates with ahead 18. The otherlstrip' 11 is provided with spaced a pertures l9 foiireceivi'ngthe. 106;

projections and heads 17 and 18 respectively. An extensible post comprising a sleeve 20 and a threaded stud 21, islocated midway between theposts 16.. The stud 21 is rigidly secured to the strip 10 and the sleeve 20 is provided with a slot by means of which it may be turned upwardly or downwardly as required, for accoinmodating various thicknesses of leaves.

A locking bar 22 is slidably mounted on the strip 11 by rivets 23, which extend through lateral slots 24 in the locking bar; The locking bar has irregular apertures 25 therein, which comprise a constricted portionfor receiving the cylindrical projection 17 of the locked position.

device .to' be. conveniently opened. and closed posts 16 for securing the strip llon the top of the posts in superimposed relation to the strip 10. The strip 11 is provided with a diagonally extending slot 26 which registers with a longitudinally extending slot 27 in the locking bar and a rivet 28 is slidably mounted in these slots. WVhen the rivet 28 is'moved from its lower position shown in Fig. 1, to its uppermost position shown in Fig. 2, the locking bar, 22 is moved laterally to the right, as viewed in Fig. 2 to unlocked members 7 and 8 in position and gluing or ce mentingthereover a liner member 31. In this form of my invention the liner is slit at the ends of the tubular members 7 and 8 for permitting the pintles 1 3 to be inserted into the ends of the tubes. With this form of my invention it is particularlyadvantageous to employ hinge elements having tubular'porti'ons o f smaller diameter than the bearing members in order that the pivotal portions of the device may be held free from the cover thus avoiding wear thereof. I a

The pivotal connection'between the binder cover andthe leaf holding stripspermits the for facilitating the removal and replacement of loose leaves without straining the cover.

Considerable force may be applied on the locking bar 22by the wedgingaction created when the rivet 28 is moved, and this locking action may be easily accomplished with'a sin gle hand. The extensible binder posts allow various thicknesses of leaves to be bound in 'thercove'r, and assure a firmly] compact arrangement. 1 a

- It will be understood that, the back portion 320i the cover will be bulged outwardly when a small stack of leaves is employed,-andithat it willbe stretched substantially straight when a stack of maximum size is mounted in the cover. This adaptability of the portion 32 of the cover to the size of the stack therein is madepossible by the absence ofrigid elements such as transverse ribs heretofore used-I in the construction of loose leaf binders. All

of the metallic portions of the binder are concealed from sight, and are entirely covered by the soft material of the cover so to avoid all possibilities of scratching desk tops or other polished surfaces. v

Although but two specific embodiments of described, it will beunderstood that details of the construction shown may be altered or any invention have been herein shown and omitted without departing from the spirit of I this invention claims.

I claim: 7 v 1. In combination with a loose leaf binder as defined by the following cover, strips secured thereto, one of said strips having apertures and a slot therein, posts on the other strip for insertion through said apertures and through apertures in loose leaves, a locking bar slidably' mounted on the apertured strip engageable with said posts and having a slot therein extending at an angle to the slot of said apertured strip, and means extending through said slots c0- acting between the latter strip and the locking bar thereon for wedging the locking bar into and out of locking position.

2. In combination with a loose leafbinder cover, a strip secured to said cover, binder posts on said'strip for insertion through apertures in loose leaves, a second strip secured to said cover having a diagonal slot and spaced apertures for receiving said binder" posts therein, locking means comprising a bar slidably mounted on said second strip having a longitudinal slot therein in registration with said diagonal slot, and means" extending through said registering slots for wedgingly moving said lockingbar laterally of the second-memtioned strip into and out ofengage- 'ment with said posts.

. 3. Incombination with a looseleaf cover,

a rigid strip pivotally mounted on said cover, binder posts onsaid strip,'a second strip pivotally mounted on said cover having a diag- I onally extending slot and apertures for receiving said binder poststherein, locking meansmounted on saidsecond strip having a longitudinally extending slot' therein in I registration I with said diagonal slot,, and

means extending through said registered, 7

slots for. moving said locking bar laterally thereof into and out of locking engagement with said binding .posts.

- 4. In combination with a binder cover,

spaced bearing members secured, thereto,

strips pivotally attached to said bearing'members, binding posts on one of said strips, locks ing means slidably mounted on theother strip engageable with said binding posts, and.

means coacting with the latter strip and the locking means thereon for Wedgingly' moving said locking means laterally into and out of locking engagement With said posts.

5. In combination With a binder cover, a lining secured thereto comprising spaced beads, a bearing member in each 01 said beads having apertured extremities, strips comprising hinge elements, pintles mounted in each hinge element, said pintles extending into the apertured extremities of said bearing members, posts on one of said strips, and locking means on the other strip engageable With said posts for securing said strips on opposite sides of a stack of loose leaves.

6. In combination with a binder cover, a flexible member secured to the intermediate portion of said binder cover comprising spaced beads, bearing members comprising rods having hollow end portions mounted in said beads, hinge elements comprising a cylindrical portion, means on said cylindrical portion pivotally mounted in said bearing members, said cylindrical portion being of smaller diameter than said bearing members for preventing Wearing of said cover, and clamping strips carried by said hinge elements for securing loose leaves in said binder cover.

7. In combination with a loose lear" binder cover, a pair of strips pivotally mounted thereon, one of said strips being provided With spaced apertures and intermediate slot, posts on the other strip for insertion through apertures in loose leaves and through the apertures in said apertured strip, locking means slidably mounted on the apertured strip having a slot therein extending at an angle to the slot in said apertured strip, and means in said slots for moving said locking means into and out of engagement With said posts.

Signed at Chicago this 12th day of January 1929.

JOSEPH KAHN. 

